Grym Blink Dog Rogue
Grym teleports to directly behind the beasts that just cast spells, he bites at the nearest creature and then begins blinking rapidly preparing to teleport away from the beasts at the beginning of his next action.
OOC: Sneak attack on one of the spellcasters (+15, 1d8-1 + 1d6 (electrical) + 2d6 sneak attack); Blink basically provides 50% miss chance against physical attacks and spells (note he blinks after attacking so does not have the 20% miss chance himself nor the +2 attack).
Next round he will dimension door to behind one of the other 2 opponents, stop the blinking, attack and then blink again preparing to dimension door again to another opponent. Note blinks are free actions.